Road Tunnels in Greece — Complete List by Length

• 79entries listed
• 5.96 kmlongest bore
• 1995–2012openings span
• 87.28 kmtotal length

The record table

How this archive measures: lengths, bores, dates and ordering

How this table is compiled

The three longest entries alone account for 14.56 km of the 87.28 km on this page, which is 17 per cent of the total from 3 of 67 rows. The shorter half of the table totals 22.31 km against 64.96 km for the longer half, from the same number of rows.

Where one of these 67 lengths disagrees with an operator's own figure for Greece, the table keeps the published value and notes the difference instead of averaging the two. The 67 rows for Greece are ordered by length, not by date, so the 2012 opening sits well down the table without being any less current.

Lengths for Greece are recorded in metres which is how the operators publish them and why the shortest entry here reads as 500 m and not a rounded figure. The longest entry is 11.9 times the shortest and 7.0 times the median, which is the quickest measure of how uneven the table is.

A new scheme in Greece would have to beat 5.96 km to change the head of this table, and that is the figure worth rechecking when one opens. Eighth on the list is Arachthos at 2.63 km, which is where the table stops being about record holders and starts being about ordinary infrastructure.

Second and third place go to Driskos at 4.58 km and Panagopoula 1 at 4.02 km. The table on this page runs to 79 rows and records Tunnel, Length (m), Date of opening, Region and Province for each of them, which is the shape the original compiler chose rather than one imposed here.

Reading the figures

Dated entries run from 1995 to 2012, and the busiest decade is the 2000s with 37 recorded openings. Read down the length (m) column, the 79 values run from 500 m to 5 962 m with a midpoint at 860 m; the spread rather than the maximum is what says how uneven this set is.

1 of the 67 measured entries exceed five kilometres, and those are the ones that carry a full ventilation and escape regime. Laid end to end the entries on this page would run 87.28 km, which is a number with no engineering meaning but a useful sense of the scale of what is catalogued.

Roughly 43 of the dated entries opened in this century, which is a rough measure of how much of the network is recent. The captions name 33 distinct places and structures — Korinthos-Patra, Peristeri-Metsovo and Volo-Venetiko among them — and those names are the index into the length tables where each is recorded with its own figure.

The dated entries carry 12 distinct opening years across 17 years, and the median opening year is 2004. The material on this page is held in 44 captions rather than in running text, 314 words of it, each written against the image or row it belongs to by the compiler who put the page together.

The dated entries fall across 12 different years, which is a rough measure of whether this was a sustained programme or a handful of separate schemes. The ten longest average 3.48 km against 0.92 km for everything below them, and that ratio is the clearest thing this table says about the distribution.